DEVICE FOR CLEANING SEWAGE Russian patent published in 1997 - IPC

FIELD: cleaning sewage from finely dispersed suspended particles, chemical compounds of heavy metals and petroleum products at mining. SUBSTANCE: device includes settling basin, dike and spillway pipe equipped with detachable water intake and drain branch pipes filled with geotextile filter material. Water intake branch pipe is made in the form of perforated truncated cone having spherical bases with ultrasonic vibration radiators on their surfaces. Device ensures settling of suspended particles more than 50 mk and petroleum products in pores of geotextile filter material at volume density of 100 to 150 kg/cu.m at pressure and no-pressure filtration and less than 50 mk at capillary siphon filtration. EFFECT: enhanced efficiency. 4 cl, 2 dwg